ples will be obtained by digging a trench immediately adjacent to the
area to be sampled and removing soil from the trench wall by pushing
into it a square pan with cutting edges on one open side.
The pan will
have a top-to-bottom distance of 5 cm and total mass collected will be
the same as with surface samples.
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Sample locations will be described;
savannah, brush-covered,
or forrested,
e.g., location is open
and level, mounded or depressed,
as such information might provide additional clues for defining the
bounds of cleanup areas.
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SAMPLE PREPARATION.
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Samples will be prepared.for gamma spectroscopy by breaking up
aggregates and pulling apart topsoil plugs
root mat)
as necessary.
(consisting of vegetation and
Any vegetation will be cut up so that it can
eventually be distributed homogeneously.
ciently to allow successful mixing.
samples will be dried suffi-
Except for large rocks, which will
be separated and discarded without taking any special efforts to remove
surface deposits, the entire sample will be blended to give a more-orless homogeneous matrix.
A weighed quantity of the mixed sample will be
packed into a standard-size container for analysis.
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